Your allowed to use this mod but you cannot report players for hacking, spamming, etc. Even with photo or video proof because the mod allows you to change the name of players. Your report will be locked and rejected.

Mods such as shaders, optifine, VoxelCam, camera studio, etc. are allowed.
Since ArmorStatusHD doesn't actually give anyone an unfair advantage (It just lists the durability of your armor), I would say it is safe to use.

And the staff won't accept player reports when you have the laby mod on